diff options
author | Karl Berry <karl@freefriends.org> | 2006-01-17 21:41:51 +0000 |
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committer | Karl Berry <karl@freefriends.org> | 2006-01-17 21:41:51 +0000 |
commit | 487ca4806cc046076293cf6cc5fbba0db282bac7 (patch) | |
tree | 847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/dvipdfm/t1crypt.c | |
parent | a3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff) |
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/dvipdfm/t1crypt.c')
-rw-r--r-- | Build/source/texk/dvipdfm/t1crypt.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Build/source/texk/dvipdfm/t1crypt.c b/Build/source/texk/dvipdfm/t1crypt.c new file mode 100644 index 00000000000..59229382fd4 --- /dev/null +++ b/Build/source/texk/dvipdfm/t1crypt.c @@ -0,0 +1,26 @@ +unsigned short int r; +unsigned short int c1 = 52845; +unsigned short int c2 = 22719; + +#include "t1crypt.h" + +unsigned char t1_encrypt(unsigned char plain) +{ + unsigned char cipher; + cipher = (plain ^ (r >> 8)); + r = (cipher+r)*c1 + c2; + return cipher; +} + +void t1_crypt_init (unsigned short int key) +{ + r = key; +} + +unsigned char t1_decrypt(unsigned char cipher) +{ + unsigned char plain; + plain = (cipher ^ (r>>8)); + r = (cipher+r)*c1 + c2; + return plain; +} |